DVP-S9, MHC-S9D - Sony Audio Service Manual (repair manual). Page 51

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51
DVP-S9
 MB BOARD  IC302  CXD9635R (SERVO DIGITAL SIGNAL PROCESSOR, ARP)
Pin No.
Pin Name
I/O
Description
1
VSS
Ground terminal (for  digital system)
2 to 9
D0 to D7
I/O
Two-way data bus terminal
10
VDD 3.3V
Power supply terminal (+3.3V) (for digital system)
11 to 15
A0 to A4
I
Address signal input terminal
16
VSS
Ground terminal (for  digital system)
17 to 19
A5 to A7
I
Address signal input terminal
20
VDD 1.8V
Power supply terminal (+1.8V) (for digital system)
21
XINT
O
Interrupt request signal output to the system controller (IC103)
22
HINT
O
Interrupt request signal output to the system controller (IC103)
23
XCS
I
Chip select signal input from the system controller (IC103)
24
HCS
I
Chip select signal input from the system controller (IC103)
25
XWAT
O
Wait signal output terminal
26
VSS
Ground terminal (for  digital system)
27 to 36
MA0 to MA9
O
Address signal output to the D-RAM (IC303)
37
VDD 3.3V
Power supply terminal (+3.3V) (for digital system)
38
XMWR
O
Write enable signal output to the D-RAM (IC303)
39
XCAS
O
CAS signal output to the D-RAM (IC303)
40
VSS
Ground terminal (for  digital system)
41
XRAS
O
RAS signal output to the D-RAM (IC303)
42
XOE
O
Output enable signal output to the D-RAM (IC303)
43
VDD1 1.8V
Power supply terminal (+1.8V) (for digital system)
44 to 51
MD0 to MD7
I/O
Two-way data bus with the D-RAM (IC303)
52
VSS
Ground terminal (for  digital system)
53 to 60
MD8 to MD15
I/O
Two-way data bus with the D-RAM (IC303)
61
VDD 3.3V
Power supply terminal (+3.3V) (for digital system)
62
DATA
O
CD data output to the AV decoder (IC503)
63
BCLK
O
CD bit clock signal output to the AV decoder (IC503)
64
VSS
Ground terminal (for  digital system)
65
LRCK
O
CD LR clock signal output to the AV decoder (IC503)
66
DOUT
O
Digital signal output to the AV decoder (IC503)
67
VDD 1.8V
Power supply terminal (+1.8V) (for digital system)
68
SDCK
O
SD bus clock signal output to the AV decoder (IC503)
69
XSHD
O
SD bus header signal output to the AV decoder (IC503)
70
XSRQ
I
SD bus request signal input from the AV decoder (IC503)
71
XSAK
O
SD bus acknowledge signal output to the AV decoder (IC503)
72
SDEF
O
SD bus error flag signal output to the AV decoder (IC503)
73 to 81
SD0 to SD7
O
SD bus data output to the AV decoder (IC503)
82
VDD 3.3V
Power supply terminal (+3.3V) (for digital system)
83 to 88
MNT0 to MNT5
I/O
Monitor signal input/output terminal    Not used (open)
89, 90
MNT6,  MNT7
I/O
Monitor signal input/output terminal    Not used (fixed at “H”)
91
ESTB
O
Error strobe signal output terminal    Not used (open)
92
VDD 1.8V
Power supply terminal (+1.8V) (for digital system)
93
RFD
I/O
RF digital data input/output terminal    Not used (fixed at “H”)
94
VSS
Ground terminal (for  digital system)
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